Definition of "terrapin"

The third ſervice was made up of a loin of freſh pork with apple-ſauce, a kid ſmothered with onions, and a terrapin baked in the ſhell; […]

1751, [Tobias] Smollett, “He is Found by the Lieutenant; Reconducted to His Own House; Married to Mrs. Grizzle, […]”, in The Adventures of Peregrine Pickle […], volumes (please specify |volume=I to IV), London: Harrison and Co., […], page 27, column 2

The land-turtle, or terrapin, is much better known at Nice, as being a native of this county; yet the beſt are brought from the iſland of Sardinia. The ſoup or bouillon of this animal is always preſcribed here as a great reſtorative to conſumptive patients.

1766, T[obias] Smollett, “Letter XIX”, in Travels through France and Italy. […], volume I, London: […] R[oberts] Baldwin, […], page 302

The ancient whale-cry [i.e., "town-ho"] upon first sighting a whale from the masthead, still used by whalemen in hunting the famous Gallipagos terrapin.

1851 November 14, Herman Melville, “The Town-ho’s Story (as Told at the Golden Inn)”, in Moby-Dick; or, The Whale, 1st American edition, New York, N.Y.: Harper & Brothers; London: Richard Bentley, footnote, page 269

As to the terrapin, I have not so much to say. The terrapin is a small turtle, found on the shores of Maryland and Virginia, out of which a very rich soup is made. It is cooked with wines and spices, and is served in the shape of a hash, with heaps of little bones mixed through it. […] I must, however, confess that the terrapin for me had no surpassing charms.

1862, Anthony Trollope, “From Boston to Washington”, in North America. […], volume I, London: Chapman & Hall, […], page 467

The man who did not eat twice of terrapin would be held in small repute, as the Londoner is held who at a city banquet does not partake of both thick and thin turtle.

1862, Anthony Trollope, “From Boston to Washington”, in North America. […], volume I, London: Chapman & Hall, […], page 467